CN203455146U - Automatic airtight detection machine for people's air defense equipment - Google Patents

Automatic airtight detection machine for people's air defense equipment Download PDF

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Publication number
CN203455146U
CN203455146U CN201320554730.7U CN201320554730U CN203455146U CN 203455146 U CN203455146 U CN 203455146U CN 201320554730 U CN201320554730 U CN 201320554730U CN 203455146 U CN203455146 U CN 203455146U
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air
xa40t
cp1h
controller plc
programmable logic
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CN201320554730.7U
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张顺
邵加锁
华芳
张建仁
彭玉凤
张大军
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ANHUI CIVIL AIR DEFENCE EQUIPMENT Co Ltd
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ANHUI CIVIL AIR DEFENCE EQUIPMENT Co Ltd
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Abstract

The utility model relates to an automatic airtight detection machine for people's air defense equipment. The machine comprises an air compressor. An air outlet of the air compressor is communicated with a sealed door overpressure room detection chamber sequentially through a hand-operated pressure-regulating valve and an air-flow ratio adjusting valve. An output terminal of a programmable controller PLC is connected with a flow transmitter and a micro-pressure transmitter. An input terminal and an output terminal of the programmable controller PLC are connected with the air-flow ratio adjusting valve and a man-machine interaction unit, respectively. The automatic airtight detection machine provided by the utility model has the advantages of complete functions, reliable program, sensitive reaction, accurate data, good performance and convenient operation. Large amount of sealing tests of the people's air defense equipment show that, the automatic airtight detection machine completely meets the specifications and requirements of RFJ01-2004 and RFJ04-2009, achieving satisfactory practical effects.

Description

Full-automatic airtight detection machine for defense equipment
Technical field
The utility model relates to defense equipment detecting instrument field, full-automatic airtight detection machine for especially a kind of defense equipment.
Background technology
The people's air defense industry standard RFJ01-2002 of country, RFJ04-2009 have proposed testing requirement to the airtight performance of sealed door and airtight blast door, have determined that the maximum of all size model allows air leakage and method of testing.Confined gas method for testing performance has two kinds of discharge method and pressure decline methods conventionally, the airtight performance test of stipulating civil air defense constructions and installations safeguard in RFJ01-2002 adopts discharge method, adopt artificial interpreting system or automatically regulate and interpreting system all can, yet because this detection need to be built special sealed chamber, configure special checkout equipment instrument, more difficult development; Pressure decline method is in closed chamber to be detected, to fill the gas of certain pressure, detects pressure drop rate after generally need to maintaining 24 hours and differentiates closed chamber and whether leak gas, and the method length consuming time, efficiency is low.
At present, domestic also do not have full automatic air tightness detecting system ,Jin You minority unit to regulate manually and the detection of interpretation; Or the semi-automatic airtight detection system that just still needs more artificial participation in testing process.Larger with semi-automatic regulative mode operation easier manually, regulate reaction slower, detection efficiency is low, and it is larger that accuracy of detection is affected by artifact, and systematic error is larger.
Utility model content
The purpose of this utility model is to provide that a kind of detection efficiency is high, precision is high, the full-automatic airtight detection machine for defense equipment that automaticity is high.
For achieving the above object, the utility model has adopted following technical scheme: full-automatic airtight detection machine for a kind of defense equipment, comprise air compressor, its gas outlet is communicated with sealed door superpressure chamber test chamber by manual pressure regulating valve, air-flow ratio adjusting valve successively, the input end of Programmable Logic Controller PLC is connected with flow transmitter, micro-pressure transmitter respectively, and the input/output terminal of Programmable Logic Controller PLC is connected with air-flow ratio adjusting valve, man-machine interaction unit respectively.
Between the gas sample mouth of the gas outlet of described air compressor, manual pressure regulating valve, air-flow ratio adjusting valve, sealed door superpressure chamber test chamber, all by air inlet pipeline, be communicated with; The output terminal of described Programmable Logic Controller PLC is connected with the input end of acousto-optic warning unit; Power circuit is to air compressor, Programmable Logic Controller PLC power supply.
Described flow transmitter is arranged on the air inlet pipeline between air-flow ratio adjusting valve and the gas sample mouth of sealed door superpressure chamber test chamber; Described micro-pressure transmitter is arranged on the gas sample mouth position of sealed door superpressure chamber test chamber.
Described man-machine interaction unit adopts touch-screen, and described acousto-optic warning unit adopts audible-visual annunciator, and the input/output terminal of Programmable Logic Controller PLC is connected with touch-screen, and the output terminal of Programmable Logic Controller PLC is connected with audible-visual annunciator.
Described power circuit comprises the first automatic switch Q1, two stationary contact meets respectively the zero line N1 of 220V civil power, live wire L1, power work pilot lamp L1 is articulated between the stationary contact and 220V civil power of the first automatic switch Q1, two moving contacts of the first automatic switch Q1 are drawn respectively zero line N2, live wire L2, one end of fuse FU1 is articulated on live wire L2, one end of fuse FU2 is articulated on zero line N2, fuse FU1, the other end of FU2 is all connected with the input end of Switching Power Supply TC1, output terminal output+24V the direct current of Switching Power Supply TC1 is to Programmable Logic Controller PLC, earth leakage protective device F1 is articulated in zero line N2, on live wire L2, air compressor is articulated in zero line N2 by the second automatic switch Q2, on live wire L2.
Described Programmable Logic Controller PLC adopts CP1H-XA40T-D, the built-in AD module of CP1H-XA40T-D and DA module, the analog input port of the output termination CP1H-XA40T-D of flow transmitter, micro-pressure transmitter, the switching value input port of CP1H-XA40T-D is connected with one end of manual/auto button SB1, scram button S1 respectively, all connect+24V of the other end direct current of manual/auto button SB1, scram button S1.
The analog output port of described CP1H-XA40T-D is connected with the input end of air-flow ratio adjusting valve, the settings scope of setting air-flow ratio adjusting valve in CP1H-XA40T-D is 4~20mA, the switching value output port of CP1H-XA40T-D is connected with one end of solid-state relay SSR1, SSR2, SSR3 respectively, solid-state relay SSR1 connects with the switch of operation valve EV1, solid-state relay SSR2 connects with the switch of operation valve EV2, and solid-state relay SSR3 connects with the switch of operation valve EV3; The switching value output port of CP1H-XA40T-D is connected with audible-visual annunciator; The switching value output port of CP1H-XA40T-D is connected with the coil of miniature relay K1, K2, K3 respectively; All connect+24V of the coil direct current of the switch of operation valve EV1, EV2, EV3, audible-visual annunciator, miniature relay K1, K2, K3.
As shown from the above technical solution, the utility model starts after air feed at air compressor, pressure and air inflow in the test chamber of Real-Time Monitoring sealed door superpressure chamber, and according to setting value, automatically regulate the aperture of air-flow ratio adjusting valve, make the pressure of test chamber progressively enter and be stabilized in the region of setting, as 50Pa or 100Pa, the detected value of flow transmitter is now the leakage rate of this test chamber under this detected pressures, in test chamber, reach and record leakage flow value and setting value comparison under normal pressure state, surpass and be unacceptable product, and point out by sound and light alarm.The utility model is multiple functional, program is reliable, be quick on the draw, data are accurate, function admirable, easy to operate, by repeatedly carrying out the airtight test of civil air defense constructions and installations safeguard, its process meets regulation and the requirement of RFJ01-2004, RFJ04-2009 completely, and has reached satisfied practical function.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present utility model.
Fig. 2 is the electrical schematic diagram of power circuit in the utility model.
Fig. 3,4 is respectively the switching value input of Programmable Logic Controller PLC in the utility model, the electrical schematic diagram of analog input.
Fig. 5,6 is respectively the switching value output of Programmable Logic Controller PLC in the utility model, the electrical schematic diagram of analog output.
Fig. 7 is that the pressure of test chamber cavity interior Plenum Process in sealed door superpressure chamber in the utility model changes schematic diagram.
Fig. 8 is the status surveillance surface chart of human-computer interaction interface in the utility model.
Embodiment
Full-automatic airtight detection machine for a kind of defense equipment, comprise air compressor 1, its gas outlet is communicated with sealed door superpressure chamber test chamber by manual pressure regulating valve 2, air-flow ratio adjusting valve 3 successively, the input end of Programmable Logic Controller PLC is connected with flow transmitter 4, micro-pressure transmitter 5 respectively, and the input/output terminal of Programmable Logic Controller PLC is connected with air-flow ratio adjusting valve 3, man-machine interaction unit 6 respectively.Between the gas sample mouth of the gas outlet of described air compressor 1, manual pressure regulating valve 2, air-flow ratio adjusting valve 3, sealed door superpressure chamber test chamber, all by air inlet pipeline 8, be communicated with; The output terminal of described Programmable Logic Controller PLC is connected with the input end of acousto-optic warning unit 7; Power circuit 9 is to air compressor 1, Programmable Logic Controller PLC power supply.Described flow transmitter 4 is arranged on the air inlet pipeline 8 between air-flow ratio adjusting valve 3 and the gas sample mouth of sealed door superpressure chamber test chamber; Described micro-pressure transmitter 5 is arranged on the gas sample mouth position of sealed door superpressure chamber test chamber.Described man-machine interaction unit 6 adopts touch-screen, and described acousto-optic warning unit 7 adopts audible-visual annunciator, and the input/output terminal of Programmable Logic Controller PLC is connected with touch-screen, and the output terminal of Programmable Logic Controller PLC is connected with audible-visual annunciator, as shown in Figure 1.
As shown in Figure 1, the Programmable Logic Controller PLC of this detection machine can realize the output electrical signals of flow transmitter 4 and micro-pressure transmitter 5 and gas ratio variable valve 3 is carried out to AD conversion, the duty setting signal of 4~20mA is provided to gas ratio variable valve 3 simultaneously.Man-machine interaction unit 6 is realized man-machine interaction, and the functions such as parameter setting, state demonstration are provided.When air compressor 1 starts after air feed, system is by pressure and air inflow in micro-pressure transmitter 5 and flow transmitter 4 Real-Time Monitoring airtight cavities, by air-flow ratio adjusting valve 3 Real-Time Monitoring actual airflow amounts, and according to the setting value of 4~20mA, control the aperture of air-flow ratio adjusting valve 3 in good time, such as, setting value is 10mA, if air-flow ratio adjusting valve only reaches 9.9mA, need to continue to adjust its aperture according to the setting value of 10mA, continue inflation, the pressure of the superpressure chamber test chamber that safeguard forms is progressively entered and stablize the region that remains on setting, as 50Pa or 100Pa, now the output valve of flow transmitter 4 is the leakage rate of this superpressure chamber under this detected pressures, in airtight cavity, reach and record leakage flow value and the comparison of certified products settings under normal pressure state, surpass and be unacceptable product, and point out by audible-visual annunciator.
As shown in Figure 2, described power circuit 9 comprises the first automatic switch Q1, two stationary contact meets respectively the zero line N1 of 220V civil power, live wire L1, power work pilot lamp L1 is articulated between the stationary contact and 220V civil power of the first automatic switch Q1, two moving contacts of the first automatic switch Q1 are drawn respectively zero line N2, live wire L2, one end of fuse FU1 is articulated on live wire L2, one end of fuse FU2 is articulated on zero line N2, fuse FU1, the other end of FU2 is all connected with the input end of Switching Power Supply TC1, output terminal output+24V the direct current of Switching Power Supply TC1 is to Programmable Logic Controller PLC, earth leakage protective device F1 is articulated in zero line N2, on live wire L2, air compressor 1 is articulated in zero line N2 by the second automatic switch Q2, on live wire L2.The main working power of system is 220VAC, while having electricity, L1 is bright for power work pilot lamp, when system power supply overvoltage, under-voltage and follow-up equipment overload, the first automatic switch Q1 can disconnect, the first automatic switch Q1 that closes, after connect equipment and have electricity, after the second automatic switch Q2 that closes, air compressor 1 work, the start-stop of air compressor 1, with pressure detecting element, can be realized automatically in air compressor 1 inside according to internal pressure.Fuse FU1, FU2 can play overcurrent and short-circuit protection to Switching Power Supply TC1, and earth leakage protective device F1 can prevent that the electric shock of operating personnel in operating process from occurring.
As shown in Figure 3,4, described Programmable Logic Controller PLC adopts CP1H-XA40T-D, the built-in AD module of CP1H-XA40T-D and DA module, the analog input port of the output termination CP1H-XA40T-D of flow transmitter 4, micro-pressure transmitter 5, the switching value input port of CP1H-XA40T-D is connected with one end of manual/auto button SB1, scram button S1 respectively, all connect+24V of the other end direct current of manual/auto button SB1, scram button S1.The AD module of built-in 4 passages of CP1H-XA40T-D and DA module; the output of micro-pressure transmitter 5, flow transmitter 4 is received to analog input port; CP1H-XA40T-D adopts 24VDC power supply; manual/auto button SB1 feasible system manually and automatically switch, when system breaks down, press scram button S1 while needing emergency stop.
As shown in Figure 5,6, the analog output port of described CP1H-XA40T-D is connected with the input end of air-flow ratio adjusting valve 3, the settings scope of setting air-flow ratio adjusting valve 3 in CP1H-XA40T-D is 4~20mA, the switching value output port of CP1H-XA40T-D is connected with one end of solid-state relay SSR1, SSR2, SSR3 respectively, solid-state relay SSR1 connects with the switch of operation valve EV1, solid-state relay SSR2 connects with the switch of operation valve EV2, and solid-state relay SSR3 connects with the switch of operation valve EV3; The switching value output port of CP1H-XA40T-D is connected with audible-visual annunciator; The switching value output port of CP1H-XA40T-D is connected with the coil of miniature relay K1, K2, K3 respectively; All connect+24V of the coil direct current of the switch of operation valve EV1, EV2, EV3, audible-visual annunciator, miniature relay K1, K2, K3, miniature relay K1, K2, K3 are as system reserve expansion use.
As shown in Figure 7, whether the airtight cavity that first checks whole equipment under test meets RFJ01-2002, the related request of RFJ04-2009, after energising, start to set various states and parameter, as operator scheme, the pressurising time, the voltage stabilizing time, pressure parameter, flow parameter etc., then start shooting air compressor 1 is accessed to leak tester, by air inlet adjustment valve regulated, controlling a gaseous tension is in advance 0.4~0.6MPa, , gas enters 2 two pressure regulation of manual modulation valve through air inlet pipeline 8, be generally 0.15MPa~0.35MPa, after regulating in advance, enter air-flow ratio adjusting valve 3, controlledly be filled with sealed door superpressure chamber test chamber.
Pressure in the test chamber cavity of sealed door superpressure chamber, along with the increase of gas is constantly increased by zero, approaches desired value gradually, and in RFJ01-2002, regulation protective door is 100Pa, and sealed door is 50Pa, and cavity internal pressure change curve as shown in Figure 7.Pressure monitoring is to draw gas to micro-pressure transmitter 5 from airtight cavity sample tap, measure the real-time pressure value in cavity, feed back to Programmable Logic Controller PLC and be reflected on the monitoring panel of man-machine interaction unit 6, Programmable Logic Controller PLC is by good programmed logic prepared in advance, the aperture of controlling air-flow ratio adjusting valve 3 according to airtight cavity internal pressure real-time change value constantly changes, until the pressure in cavity reaches and is stabilized in predefined desired value.Under this state, the amount of gas that airtight cavity leaks out reaches mobile equilibrium with the gas flow that enters cavity, and the flow value recording in air inlet pipeline 8 is just equal to the air leakage of this airtight cavity.Flow monitoring is measured in real time flow number and is fed back to Programmable Logic Controller PLC and be reflected on the monitoring panel of man-machine interaction unit 6 by being arranged on flow transmitter 4 on air inlet pipeline 8.
In Fig. 7, Z-axis P is cavity internal pressure numerical value, and transverse axis T is the time corresponding thereto, and t1, t2, t3, t4 are that the movement velocity K by air-flow ratio adjusting valve 3 apertures is determined, black line is cavity internal pressure change curve.P0, P1, P2, P3, P4, K1, K2, K3, K4, k5 all set input before start.Certain mensuration product G M1020 of take is example, the P0 setting is 50, P1 is 30, P2 is 35, P3 is 40, P4 is 45, and electric signal K1, K2, K3, the K4 of corresponding control air-flow ratio adjusting valve 3 apertures are set as respectively 1/4,1/10,1/30,1/60,1/90 simultaneously.Above process can be done following description, the start initial stage, air-flow ratio adjusting valve 3 is opened fast with the speed of 1 signal in every 4 seconds, in cavity, rising to rapidly the fast speed that changes 10 seconds 1 signals after 30Pa into opens, cavity internal pressure changes again opening more at a slow speed of 30 seconds 1 signals into after reaching 35Pa, when being 40Pa, pressure once more changes the unlatching at a slow speed of every 60 seconds 1 electric signal into, when pressure is 45Pa, finally the speed with every 90 seconds 1 electric signal enters P0 region very lentamente, in RFJ04-2009, regulation P0 is 50Pa, reading effective coverage is 50+2Pa, if P value surpasses after 52Pa, air-flow ratio adjusting valve 3 just reduces aperture, make the pressure in cavity continue to maintain in effective coverage.Certain test 3 door frame doors (airtight performance test major parameter record as shown in table 1.
Table 1
As shown in Figure 8, the interface of man-machine interaction unit 6 comprises detects station window, status surveillance window, operation control window etc., in status surveillance window, provides the interfaces such as pressure setting, pressure detection, flow detection, testing result, and intuitive display understands.
In sum, the utility model starts after air feed at air compressor 1, pressure and air inflow in the test chamber of Real-Time Monitoring sealed door superpressure chamber, and according to setting value, automatically regulate the aperture of air-flow ratio adjusting valve 3, make the pressure of test chamber progressively enter and be stabilized in the region of setting, as 50Pa or 100Pa, the detected value of flow transmitter 4 is now the leakage rate of this test chamber under this detected pressures, in test chamber, reach and record leakage flow value and setting value comparison under normal pressure state, surpass and be unacceptable product, and point out by sound and light alarm.The utility model is multiple functional, program is reliable, be quick on the draw, data are accurate, function admirable, easy to operate, by repeatedly carrying out the airtight test of civil air defense constructions and installations safeguard, its process meets regulation and the requirement of RFJ01-2004, RFJ04-2009 completely, and has reached satisfied practical function.

Claims (7)

1. a full-automatic airtight detection machine for defense equipment, it is characterized in that: comprise air compressor (1), its gas outlet is communicated with sealed door superpressure chamber test chamber by manual pressure regulating valve (2), air-flow ratio adjusting valve (3) successively, the input end of Programmable Logic Controller PLC is connected with flow transmitter (4), micro-pressure transmitter (5) respectively, and the input/output terminal of Programmable Logic Controller PLC is connected with air-flow ratio adjusting valve (3), man-machine interaction unit (6) respectively.
2. full-automatic airtight detection machine for defense equipment according to claim 1, is characterized in that: between the gas sample mouth of the gas outlet of described air compressor (1), manual pressure regulating valve (2), air-flow ratio adjusting valve (3), sealed door superpressure chamber test chamber, all by air inlet pipeline (8), be communicated with; The output terminal of described Programmable Logic Controller PLC is connected with the input end of acousto-optic warning unit (7); Power circuit (9) is to air compressor (1), Programmable Logic Controller PLC power supply.
3. full-automatic airtight detection machine for defense equipment according to claim 2, is characterized in that: described flow transmitter (4) is arranged on the air inlet pipeline (8) between air-flow ratio adjusting valve (3) and the gas sample mouth of sealed door superpressure chamber test chamber; Described micro-pressure transmitter (5) is arranged on the gas sample mouth position of sealed door superpressure chamber test chamber.
4. full-automatic airtight detection machine for defense equipment according to claim 2, it is characterized in that: described man-machine interaction unit (6) adopts touch-screen, described acousto-optic warning unit (7) adopts audible-visual annunciator, the input/output terminal of Programmable Logic Controller PLC is connected with touch-screen, and the output terminal of Programmable Logic Controller PLC is connected with audible-visual annunciator.
5. full-automatic airtight detection machine for defense equipment according to claim 2, it is characterized in that: described power circuit (9) comprises the first automatic switch Q1, two stationary contact meets respectively the zero line N1 of 220V civil power, live wire L1, power work pilot lamp L1 is articulated between the stationary contact and 220V civil power of the first automatic switch Q1, two moving contacts of the first automatic switch Q1 are drawn respectively zero line N2, live wire L2, one end of fuse FU1 is articulated on live wire L2, one end of fuse FU2 is articulated on zero line N2, fuse FU1, the other end of FU2 is all connected with the input end of Switching Power Supply TC1, output terminal output+24V the direct current of Switching Power Supply TC1 is to Programmable Logic Controller PLC, earth leakage protective device F1 is articulated in zero line N2, on live wire L2, air compressor (1) is articulated in zero line N2 by the second automatic switch Q2, on live wire L2.
6. full-automatic airtight detection machine for defense equipment according to claim 2, it is characterized in that: described Programmable Logic Controller PLC adopts CP1H-XA40T-D, the built-in AD module of CP1H-XA40T-D and DA module, the analog input port of the output termination CP1H-XA40T-D of flow transmitter (4), micro-pressure transmitter (5), the switching value input port of CP1H-XA40T-D is connected with one end of manual/auto button SB1, scram button S1 respectively, all connect+24V of the other end direct current of manual/auto button SB1, scram button S1.
7. full-automatic airtight detection machine for defense equipment according to claim 6, it is characterized in that: the analog output port of described CP1H-XA40T-D is connected with the input end of air-flow ratio adjusting valve (3), the settings scope of setting air-flow ratio adjusting valve (3) in CP1H-XA40T-D is 4~20mA, the switching value output port of CP1H-XA40T-D respectively with solid-state relay SSR1, SSR2, one end of SSR3 is connected, solid-state relay SSR1 connects with the switch of operation valve EV1, solid-state relay SSR2 connects with the switch of operation valve EV2, solid-state relay SSR3 connects with the switch of operation valve EV3, the switching value output port of CP1H-XA40T-D is connected with audible-visual annunciator, the switching value output port of CP1H-XA40T-D is connected with the coil of miniature relay K1, K2, K3 respectively, all connect+24V of the coil direct current of the switch of operation valve EV1, EV2, EV3, audible-visual annunciator, miniature relay K1, K2, K3.
CN201320554730.7U 2013-09-07 2013-09-07 Automatic airtight detection machine for people's air defense equipment Active CN203455146U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103344499A (en) * 2013-07-02 2013-10-09 上海飞机制造有限公司 Test equipment for pressure and airtightness of fuselage of passenger plane
CN103439066A (en) * 2013-09-07 2013-12-11 安徽人防设备有限公司 Full-automatic airtight detection machine for civil air defense device
CN109115423A (en) * 2018-07-23 2019-01-01 赵俊芳 A kind of flange, weld seam, pipeline or apparatus body leak detection system and leak hunting method
CN111521353A (en) * 2020-04-30 2020-08-11 广船国际有限公司 Measuring device and measuring method for air leakage of integrated prevention cabin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103344499A (en) * 2013-07-02 2013-10-09 上海飞机制造有限公司 Test equipment for pressure and airtightness of fuselage of passenger plane
CN103439066A (en) * 2013-09-07 2013-12-11 安徽人防设备有限公司 Full-automatic airtight detection machine for civil air defense device
CN109115423A (en) * 2018-07-23 2019-01-01 赵俊芳 A kind of flange, weld seam, pipeline or apparatus body leak detection system and leak hunting method
CN111521353A (en) * 2020-04-30 2020-08-11 广船国际有限公司 Measuring device and measuring method for air leakage of integrated prevention cabin

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